CONJUGATE HEAT TRANSFER DURING FREE JET IMPINGEMENT OF A HIGH PRANDTL NUMBER FLUID

This article presents the results of numerical simulation of a free jet of a high Prandtl number fluid impinging perpendicularly on a solid substrate of finite thickness containing electronics on the opposite surface. The numerical model was developed considering both solid and fluid regions and sol...

Full description

Saved in:
Bibliographic Details
Published in:Numerical heat transfer. Part B, Fundamentals Fundamentals, 1999-09, Vol.36 (2), p.139-162
Main Authors: RAHMAN, M. M, BULA, A. J, LELAND, J. E
Format: Article
Language:English
Subjects:
Convection and heat transfer
Exact sciences and technology
Fluid dynamics
Fundamental areas of phenomenology (including applications)
Jets
Physics
Turbulent flows, convection, and heat transfer
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This article presents the results of numerical simulation of a free jet of a high Prandtl number fluid impinging perpendicularly on a solid substrate of finite thickness containing electronics on the opposite surface. The numerical model was developed considering both solid and fluid regions and solved as a conjugate problem. The influence of different operating parameters such as jet velocity, heat flux, plate thickness, nozzle height, and plate material were investigated. Computed results were validated with available experimental data. It was found that the local Nusselt number is maximum at the center of the disk and decreases gradually with radius as the flow moves downstream. The average Nusselt number and the maximum temperature occurring in the solid varied significantly with impingement velocity, disk thickness, and thermal conductivity of the disk material.
ISSN:1040-7790
1521-0626
DOI:10.1080/104077999275695